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Gebe Island Mining Area

Producer in Indonesia with commodities Nickel, Cobalt, Iron
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Host and associated rocks
  7. Nearby scientific data
  8. Geologic structures
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Reserves and resources
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10024538
MRDS ID ISM0261
Record type Site
Current site name Gebe Island Mining Area
Alternate or previous names Tg. Ubulia

Geographic coordinates

Geographic coordinates: 129.43247, -0.06507 (WGS84)
Relative position CENTROID; 1.2 KM

Site location context

Political divisions (FIPS codes)

Indonesia(country)

Asia(continent)

Land(continent)

Geographic areas

Country
Indonesia

Comments on the location information

  • CENTROID IS CENTER OF ORE BODY
  • L9 AND L10 REFER TO AREA OF PRESENT MINING OPERATIONS.

Commodities

Commodity Importance
Nickel Critical Primary
Cobalt Critical Primary
Iron Primary

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Stratigraphic age (youngest) Pliocene

Nearby scientific data

(1) 129.43247, -0.06507
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Economic information

Geologic structures

Type of structure Regional
Structure description Tropical Weathering Of Ultramafic Rocks

Comments on the geologic information

  • ; ARCH; RB/SR; 2615 +/- 30 MA; PYTT + PNLD + PYRT + CLCP + MGNT + CRMT + MLRT; KAMBALDA SEQUENCE COMPRISES FROM BASE: FOOTWALL BASALT, ULTRAMAFIC SEQUENCE (OLIVINE PERIDOTITE AND PICRITE), HAN-GING-WALL BASALT, PLUS ASSOCIATED SEDIMENTS AND FELSIC INTRUSI-VES. SEQUENCE NOW DOMED AS A RESULT OF FOLDING/INTRUSION. 80-% OF ORE OCCURS IN FOOTWALL BASALT/ULTRAMAFIC CONTACT; REMAIND-ER OCCURS WITHIN ULTRAMAFIC SEQUENCE. ORE CONTAINS MASSIVE, M-ATRIX, AND DISSEMINATED SULPHIDES.
  • ; LMON + GRNR

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1974
Year of first production 1979
Year of last production 1984

Ownership information

  • Type Operator
    Owner P. T. Aneka Tambang (A State-Owned Co.)
  • Type Owner
    Owner State Owned

Comments on the production information

  • PRODUCTION DATA INCLUDED WITH OTHER DATA FOR THE KAMBALDA-ST. IVES-TRAMWAYS DISTRICT IN TOTALS FOR JUAN MINE.
  • OF THE 1982 MINE PRODUCTION (916,805 MT), 63,230 MT WERE USED TO FEED ANEKA TAMBANG'S POMALAA FERRONICKEL PLANT. -THE BALANCE PRESUMABLY WAS EXPORTED, MAINLY TO JAPAN.

Reserves and resources

  • Type In-situ
    Estimate year 1976
    Commodity Subtype Grade units Group Importance Year
    Nickel Ni 2.22 wt-pct Nickel Major 1976

Comments on the reserve resource information

  • RESOURCE DATA INCLUDED WITH OTHER DATA FOR KAMBALDA-ST. IVES-TRAMWAYS DISTRICT IN TOTALS FOR JUAN MINE.
  • REPORTER'S ESTIMATE: 68 MILLION TONS OF LIMONITIC ORE GRADING 1.25% NI. SEE RR48. POSSIBLY CONTAINING 32 MILLION TONS SILICATE ORE (R1E) AND 68 MILLION TONS OF LIMONITIC ORE AVERAGING 1.25% NI.
  • SILICATE ORE

Comments on development

  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. ( X; WEAK NICKEL DEMAND AND WORLD-WIDE OVERCAPACITY). DEVELOPMENT(YES; ORE BLOCKING); EXPLORATION(YES; GEOLOGICAL MAPPING, DRILLING); ASSESSMENT(RESERVES AT OPERATING MINES ARE DECLINING, BUT LARGE RESOURCES EXIST IN NEW ORE ZONES; LARGE POTENTIAL FOR EXPANSI-ON OF PRODUCTION, BUT IMPLEMENTATION DEPENDS ON IMPROVEMENT IN- WORLD DEMAND.);
  • NON-GEOLOGIC CONSTRAINTS ON DEVELOPMENT OR EXPANSION IN 1-5 YRS. ( X; PRODUCTION COSTS AND NICKEL MARKET CONDITIONS). ASSESSMENT(PRODUCTION WAS PLANNED FOR 20 YEARS OF MINING. PRODUCTION STARTED IN APRIL 1979.); PLANNED MINE CAPACITY WAS 1.1 MIL TONS/YR IN 1980 AND 1.5 MIL TONS/YR IN 1981. ; ECON.COM: PRODUCTION WAS PLANNED FOR 20 YEARS OF MINING. PRODUCTION STARTED IN APRIL 1979.

Reference information

Bibliographic references

  • Deposit

    PRIJONO, A., 1977, POTENTIAL OF THE LATERITIC-NICKEL DEPOSITS IN INDONESIA AND THEIR SUCCESSFUL DEVELOPMENT--MUCH -DEPENDS ON THE RIGHT PROCESSING METHOD, IN PRIJONA, A., LONG, -C., AND SWEATMAN, R., EDS., THE INDONESIAN MINING INDUSTRY--IT-S PRESENT AND FUTURE: JAKARTA, THE INDONESIAN MINING ASSOCIAT-ION, PROCEEDINGS OF THE FIRST INDONESIAN MINING SYMPOSIUM, P. -184-250.

  • Deposit

    PERTAMBANGAN INDONESIA, 1982, INDONESIAN MINING YEARBOOK. (PA1-PA4, PA8, PC1)

  • Deposit

    MINING JOURNAL, 1976, INDUSTRY IN ACTION--FERRONICKEL SMELTER TO GO AHEAD: MINING JOURNAL, V. 286, NO. 7330, P. 1-23. (RR1)

  • Production

    PA1-PA4, PA8: RF2, P. 111 PC1: RF2, P. 111

General comments

Subject category Comment text
Deposit THIS RECORD WAS COMPILED FOR THE INTERNATIONAL STRATEGIC MINERALS INVENTORY. THE DATA WERE USED IN PREPARATION OF THE USGS CIRCULAR 930 SERIES OF REPORTS. MINERAL RESOURCE CATEGORIES AND CODES HEREIN ARE FROM THE INTERNATIONAL CLASSIFICATION SYSTEM RECOMMENDED BY THE UNITED NATIONS GROUP OF EXPERTS ON DEFINITIONS AND TERMINOLOGY FOR MINERAL RESOURCES. (SEE NATIONAL RESOURCES FORUM, V. 4, NO. 3, P. 307-313.). SURFACE
Deposit THIS RECORD WAS COMPILED FOR THE INTERNATIONAL STRATEGIC MINERALS INVENTORY. THE DATA WERE USED IN PREPARATION OF THE USGS CIRCULAR 930 SERIES OF REPORTS. MINERAL RESOURCE CATEGORIES AND CODES HEREIN ARE FROM THE INTERNATIONAL CLASSIFICATION SYSTEM RECOMMENDED BY THE UNITED NATIONS GROUP OF EXPERTS ON DEFINITIONS AND TERMINOLOGY FOR MINERAL RESOURCES. (SEE NATIONAL RESOURCES FORUM, V. 4, NO. 3, P. 307-313.). UNDERGROUND SMELTED/REFINED

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1984 Krauss, Ulrich H. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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